Association between endogenous oxytocin levels and live birth rates following fresh embryo transfer: a prospective cohort study.

Front Endocrinol (Lausanne) · 2026 · PMC13268967 · PMID 42312200

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did not reach statistical significanceno p-value reported

Although a marginal downward trend in 2PN, cleavage, and blastocyst formation rates was observed in the highest quartile (>75th percentile), overall intergroup differences did not reach statistical significance.

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a positive trendno p-value reported

Multivariable logistic regression (Model 1) and inverse probability weighting (Model 2) consistently demonstrated that elevated serum oxytocin significantly decreased the likelihood of live birth, whereas follicular fluid oxytocin showed a positive trend.

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